your opinion of oils
ok Just wondering what you guys would think of these oil comparisons.
I have Castrol GTX
Mobil 1 Synthetic,
Mobil Super 1000,
Quaker state Defy,
Royal Purple High performance Synth.
I have a 1998 Ford 4 cyl, 140 000k on it.
What you think the top 3 oils are for my type of vehicle in this list?